There aren't any functions to check the settings. All you need to do is check the the returned status code is PICO_OK (0). If any values are out of range or there are any other problems, the status code will be non-zero

Hi
I was recently trying to do exactly the same thing (but eventually decided to rely on pico_status)

However- the ps4000 manual (page37) does mention a command called "ps4000IsTriggerOrPulseWidthQualifierEnabled"
I tried this, but 'triggerEnabled' always returned as zero, regardless of whether or not the trigger successfully fired a few lines later.

Personally, I dont actually need this line of code any more, but it could be useful to know if this command works- or at least does what it implies it should do!